CN102075799A - Set top box system capable of realizing video telephone function in cable television network - Google Patents
Set top box system capable of realizing video telephone function in cable television network Download PDFInfo
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Abstract
The invention discloses a set top box system capable of realizing a video telephone function in a cable television network. The set top box system is characterized in that the system comprises a digital television basic service processing module, a modulation-demodulation management module, a graphical display output module, a video telephone service processing subsystem and a system main task module; and a user registers on a video telephone service management server through the modules to obtain a telephone number, then call connection is conducted, input audio-video signals of a decoding camera and a microphone which are connected with universal serial bus (USB) interfaces on a set top box are transmitted to the set top box of another user for display and thereby conversion through the set top boxes can be realized. By using the existing radio and television digital television bilateral network, a high-definition television service and a video telephone service which originally belong to two different networks are integrated into one set top box terminal for realization, the integration of multimedia communication services is realized on one television for vast radio and television users, the market value of cable digital televisions can be promoted and the average revenue per user (ARRU) value of cable television operators can be improved.
Description
Technical field
The present invention relates to set-top-box system, relate in particular to a kind of set-top-box system that in digital TV network, carries out video calling by wire cable in digital cable TV (CATV) field.
Background technology
At present among the numerous domestic consumers at home, enjoy the service of TV and phone if desired, normal conditions are to use a set-top box to be connected on the Cable cable and watch Digital Television, the telephone set that uses telecom operators to provide is connected to and realizes conversation on the telephone wire, and most phones all is pure voice call, and the few of video call service can be provided.
The bidirectional rebuilding of broadcasting and TV program transmission digitlization and network is the great variety that radio, TV and film industries have been brought broadcast content, program form, method of service, receive mode, profit model, has also opened up the rich imagination space for development in future.Along with the whole translation of China Digital TV deepens continuously, the carrier of digital TV network transmission having become new media.
Cable TV network has natural broadband character, can satisfy the demand of various broadband services to bandwidth.In the HFC system, whole communication bandwidth is divided into two frequency bands of up-downgoing.The frequency band of common up use 5～42MHz, descending use 45～750MHz, even up to the frequency band of 1000MHz.The up-downgoing frequency band is divided into very multichannel again, and these channels both can pass digital signal, also can pass analog signal.To in September, 2010, Chinese cable digital TV user has surpassed 6500 general-purpose families, has become the maximum access network in the whole nation.Along with continuous advancement in technology, realize Broadcasting Cable Network inside, comprise between Broadcasting Cable Network and other network, interconnect, resource-sharing, on a terminal equipment, provide multiple services such as speech, data and radio and television, the demand that to be industry propose technology for the user.
Summary of the invention
The present invention is directed to the proposition of above problem, and develop a kind of set-top-box system of in cable TV network, realizing video telephone.The method that provides according to this invention, the user can be with this set-top box, watch the high definition bidirectional interactive digital TV program, simultaneously can on television set, dial video telephone by this box, in the digital cable TV network, converse with the user who uses an other cable digital TV set-top box.
The technological means that the present invention adopts is as follows:
A kind of set-top-box system of realizing video telephone in cable TV network is characterized in that comprising:
The digital television fundamental Service Processing Module is used to handle normal program viewing, and channel increases and decreases, changes platform and video on demand business;
The modulation administration module, be used for that cable TV network is modulated and be up to all data messages in the set-top box and transmit, and can be from the code stream of cable TV network the descending data of demodulation, obtain through the digital information of debugging and with its reduction;
The graphical display output module is used for showing the video flowing of this machine camera collection of this machine menu interface, Video Decoder, handles called machine simultaneously and passes the video flowing of coming, and is presented at them on the television screen synchronously;
The visual telephone service processing subsystem comprises managing visual telephone number Registering modules, looks audio collection processing module and call management module;
The telephone number Registering modules, be used for the leading subscriber set-top box and send telephone number application request, this machine uniquely identified sequence number information is uploaded to the visual telephone service management server that is deployed in after the network head end CMTS system based on standard Session Initiation Protocol packing, and obtains the telephone number that the visual telephone service management servers process is distributed to this machine;
Look the audio collection processing module, be used for the external coding camera collection of set-top box USB mouth code stream H.264, it is sent into the Video Decoder of set-top box, simultaneously the external microphone of USB is gathered audio frequency, through G.723 sending into the audio decoder of set-top box behind the coding, the back to video flowing H.264 and G.723 audio stream based on standard Real-time Transport Protocol packing processing;
The call management module, be responsible for that packing sends to the visual telephone service management server that is deployed in after the network head end CMTS system based on the standard Session Initiation Protocol with call information, handle ring that the visual telephone service management server returns simultaneously, the line is busy, refuse to listen, agree to answer message, and set up the communication line of calling and called side, to transmit based on the video/audio data flow of standard Real-time Transport Protocol packing, and the other side's video/audio data flow that is transferred to this machine is unpacked the realization video call based on the standard Real-time Transport Protocol;
System manager's module of being engaged in, for main control module in the set-top box with digital television fundamental business module, modulation administration module, show that each module in output module and the visual telephone service processing subsystem is connected, and is used to manage above-mentioned each module.The described audio collection processing module of looking also is included in video flowing and the audio stream packing processing procedure and adopts the 3DES cryptographic algorithm that video/audio is carried out encryption; Simultaneously the call management module is carried out the 3DES deciphering simultaneously unpacking.
Realize the video telephone method in a kind of cable TV network that utilizes above-mentioned set-top-box system, it is characterized in that
(1) set-top-box opening powers on the back by calling the telephone number Registering modules of visual telephone service processing subsystem, automatic visit is deployed in the visual telephone service management server behind the cable network head end CMTS, the visual telephone service management server uses the corresponding assign telephone numbers of this machine id information that carries in the set-top box registration message, return to set-top box by cable network again, set-top box herd number information and state are retained in the middle of the server simultaneously;
(2), and, do timing simultaneously and wait for to the request of making a call of visual telephone service management server if the caller calls callee needs callee's number is input in the set-top box menu interface;
(3) after the visual telephone service management server receives caller calls callee's request, can in the related registration information table that this organizational security is deposited, search the pairing callee's of call number state, if the callee is conversing or other error message is being arranged, then such message is returned by the cable network transmission and be notified to the calling party, if callee's state is idle, then give the callee by the cable network transmission notice with calling party's call request;
(4) callee receives the message that the transmission of visual telephone service management server comes, and can the prompting caller ID be calling party's number on video screen, and the loudspeaker by television set send ringing tone simultaneously;
(4.1) if callee user agrees incoming call answering, then can call this machine looks the audio collection processing module and opens coding camera that set-top box USB mouth connects and microphone and carry out video flowing collection and sound collection and coding G.723, video after gathering is shown on this dynamo-electric screen curtain, call the call management module again, video and audio data stream after gathering are packed based on the standard Real-time Transport Protocol, to send to cable TV network after the data message modulation, directly transmit to the calling party, simultaneously, will confirm that the information notice of agreeing incoming call answering sends to the visual telephone service management server;
(4.2), then refusal information notice is sent to the visual telephone service management server if callee user disagrees with incoming call answering;
(5) calling party receive callee that the visual telephone service management server returns to setting up the feedback of conversation;
(5.1) if what receive is that the callee agrees the information of calling out, then can call this machine looks the audio collection processing module and opens coding camera that set-top box USB mouth connects and microphone and carry out video flowing collection and audio collection and coding G.723, video after gathering is shown to assigned address on this dynamo-electric screen curtain, call the call management module again, video and audio data stream after gathering are packed based on the standard Real-time Transport Protocol, with sending to cable TV network after the data message modulation, directly transmit to the callee; At this moment calling party and callee all can receive the data flow after the modulation that the other side transmits, after this machine of process modulation administration module carries out demodulation, all can untie the other side and transmit next packet, original video, audio-frequency information are sent into decoder, by the graphical display output module video is shown to the screen assigned address, by the television set speaker sounding, hear the other side's sound;
(5.2) if what receive is the information that the callee disagrees with calling, then directly in screen prompt conversation failure, calling procedure finishes;
(6) in calling course of video telephone, no matter calling party calling party still is that callee callee's user hangs up the telephone, its call management module all can initiatively be closed the camera and the microphone of this machine, stop to look audio collection, hang up information from the request of sending of trend visual telephone service management server simultaneously; The visual telephone service management server can pass to the information of hanging up by the side of hanging up, the quilt set-top box of the side of hanging up also can be called camera and the microphone that this machine call management module is initiatively closed this machine after receiving this information, can send the information that affirmation is hung up from trend visual telephone service management server simultaneously, the visual telephone service management server can continue and will be passed to the side of hanging up by the information that the affirmation that the side of hanging up sends is hung up, after the side of hanging up received this information, conversation finished fully.
Step (2) also comprises: if overlong time can automatic abandoned call, prompt timeout error message on calling party's video screen simultaneously.
Compared with prior art, advantage of the present invention is conspicuous.The present invention utilizes present broadcasting and TV digital television bidirectional network, business integration to a STB terminal under HDTV (High-Definition Television) and two heterogeneous networks of video telephone script is realized, on a television set, realized the fusion of multimedia communication service for vast radio and television users, can greatly promote the market value of cable digital TV, improve the ARPU value of cable television operators.
Description of drawings
The present invention has four width of cloth accompanying drawings:
Fig. 1 is the software architecture figure of video telephone set-top box;
Fig. 2 is the network design schematic diagram of video telephone set-top box;
Fig. 3 is the software flow pattern of video telephone set-top box;
Fig. 4 is the enforcement schematic diagram of video telephone set-top box.
Embodiment
The set-top-box system of realizing video telephone in the cable TV network as shown in Figure 1 is made up of set-top box CPU, tuner, Flash, DDR SDRAM, built-in integrated hardware cells such as CableModem, software module comprise the system manager be engaged in module, digital television fundamental business module, visual telephone service processing subsystem, modulation administration module, show output module, wherein the visual telephone service processing subsystem comprise video telephone number registration module again, look the audio collection processing module, the call management module.Wherein: the digital television fundamental Service Processing Module be used to handle normal program viewing, and channel increases and decreases, changes traditional tv business such as platform and program request;
The modulation administration module, by the built-in CableModem of set-top box, being used for that cable TV network is modulated and be up to all data messages in the set-top box transmits, and can be from the code stream of cable TV network the descending data of demodulation, obtain through the digital information of debugging and with its reduction, realized in the digital cable TV network, carrying out the bi-directional data traffic transmission;
The graphical display output module is used for showing the video flowing of this machine camera collection of this machine menu interface, Video Decoder, handles called machine simultaneously and passes the video flowing of coming, and is presented at them on the television screen synchronously;
The visual telephone service processing subsystem comprises managing visual telephone number Registering modules, looks audio collection processing module and call management module;
The telephone number Registering modules, be used for the leading subscriber set-top box and send telephone number application request, this machine uniquely identified sequence number information is uploaded to the visual telephone service management server (SIP Server) that is deployed in after the network head end CMTS system based on standard Session Initiation Protocol packing, and obtains visual telephone service management server (SIP Server) and handle the telephone number of distributing to this machine;
Look the audio collection processing module, be used for the external coding camera collection of set-top box USB mouth code stream H.264, it is sent into the Video Decoder of set-top box, external to USB simultaneously microphone (microphone) is gathered audio frequency, through sending into the audio decoder of set-top box after G.723 encoding, the back to video flowing H.264 and G.723 audio stream based on the standard Real-time Transport Protocol packing handle, for safety employing 3DES cryptographic algorithm is carried out encryption to video/audio in the packing processing procedure;
The call management module, be responsible for call information (this set-top box number, called set-top box plane No. sign indicating number etc.) send to the visual telephone service management server (SIP Server) that is deployed in after the network head end CMTS system based on standard Session Initiation Protocol packing, handle the ring that visual telephone service management server (SIP Server) returns simultaneously, the line is busy, refuse to listen, agree to answer message, and set up the communication line of calling and called side, the video/audio data flow of encrypting and pack based on the standard Real-time Transport Protocol is transmitted, and the other side's video/audio data flow that is transferred to this machine unpacked based on the standard Real-time Transport Protocol, the 3DES deciphering realizes video call;
System manager's module of being engaged in, for main control module in the set-top box with digital television fundamental business module, modulation administration module, show that each module in output module and the visual telephone service processing subsystem is connected, and is used to manage above-mentioned each module.
As realizing that the video telephone method comprises the steps: (postulated mechanism top box A is the calling party, and set-top box B is the callee) in Fig. 2, Fig. 3 and the cable TV network that utilizes above-mentioned set-top-box system shown in Figure 4
(1) set-top-box opening powers on the back by calling the telephone number Registering modules of visual telephone service processing subsystem, up automatic visit is deployed in the SIP Server behind the cable network head end CMTS, SIP Server uses this machine id information (can be the set-top box unique identification information of sequence number of set top box or system definition) that carries in the set-top box registration message, generate telephone number by default algorithm, again by the descending set-top box that returns to of cable TV network, simultaneously with set-top box herd number information and state (free time, conversing, it is medium that the line is busy) be retained in the middle of the server;
(2) if set-top box A beeper top box B need the number of set-top box B is input in the set-top box menu interface, and it is up to the SIP Server request of making a call to call the call management module, does timing simultaneously and wait for; If the automatic abandoned call of overlong time meeting, prompt timeout error message on video screen simultaneously;
(3) after SIP Server receives the request of set-top box A beeper top box B, can in the related registration information table that this organizational security is deposited, search the state of the pairing set-top box B of call number, if set-top box B is conversing or other error message is arranged, then such message is returned by the cable network downlink transfer and be notified to set-top box A.If the state of set-top box B is idle, then the call request with set-top box A descends capable transmission notice to set-top box B by cable network;
(4) set-top box B receives the message that SIP Server transmission comes, and can point out caller ID (number of set-top box A) on video screen, and the loudspeaker by television set send ringing tone simultaneously.
(4.1) if the set-top box party B-subscriber agrees incoming call answering, then can call the audio collection processing module of looking of this machine visual telephone service processing subsystem opens coding camera that set-top box USB mouth connects and microphone (microphone) and carries out video flowing collection and sound collection and coding G.723, video after gathering is shown to assigned address on this dynamo-electric screen curtain, call the call management module again, video after gathering and voice data stream are carried out 3DES to be encrypted and packs based on the standard Real-time Transport Protocol, with sending to cable TV network after the data message modulation, directly transmit to set-top box A.Simultaneously, will confirm that the information notice of agreeing incoming call answering sends to SIP Server;
(4.2), then refusal information notice is sent to SIPServer if the set-top box party B-subscriber disagrees with incoming call answering;
(5) set-top box A receive set-top box B that SIP Server returns to setting up the feedback of conversation.
(5.1) if what receive is the information that set-top box B agree to call out, then can call this machine looks the audio collection processing module and opens coding camera that set-top box USB mouth connects and microphone (microphone) and carry out video flowing and audio collection and coding G.723, video after gathering is shown to assigned address on this dynamo-electric screen curtain, call the call management module again, video after gathering and voice data stream are carried out 3DES to be encrypted and packs based on the standard Real-time Transport Protocol, with sending to cable TV network after the data message modulation, directly transmit to set-top box B.At this moment set-top box A and B all can receive the data flow after the modulation that the other side transmits, after this machine of process modulation administration module carries out demodulation, all can untie the other side and transmit next packet based on the standard Real-time Transport Protocol, decipher through 3DES again, original video, audio-frequency information are sent into decoder, by the graphical display output module video is shown to the screen assigned address,, hears the other side's sound by the television set speaker sounding.Like this, after the complete foundation of conversation, caller A and called B all can see own and the other side's video image on TV, hear the other side's sound simultaneously in the TV loudspeaker.
(5.2) if what receive is the information that set-top box B disagrees with calling, then directly in screen prompt conversation failure, calling procedure finishes.
(6) in calling course of video telephone, no matter calling party's set-top box A still is that the user of callee's set-top box B hangs up the telephone, its call management module all can initiatively be closed the camera and the microphone (microphone) of this machine, stop to look audio collection, hang up information from the trend SIP Server request of sending simultaneously.SIP Server can pass to the information of hanging up the other side's (by the side of hanging up), also can call camera and the microphone (microphone) that this machine call management module is initiatively closed this machine after the other side's's (by the side of hanging up) set-top box receives this information, can send the information that affirmation is hung up from trend SIP Server simultaneously.SIP Server can continue and will be passed to the side of hanging up by the information that the affirmation that the side of hanging up sends is hung up, and after the side of hanging up received this information, conversation finished fully.
The present invention has realized that the television services of traditional CHINA RFTCOM Co Ltd and the telephone service of communication network represent on same set-top box, same TV, if on the call management function of SIP Server end, add functions such as security control, flow control, timing, charging, then can derive to cable television operators provide the video telephone commercial service, lay good basis for the research and development at integration of three networks epoch following family multi-media center simultaneously.
The above; only be the preferable embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (4)
1. set-top-box system of realizing video telephone in cable TV network is characterized in that comprising:
The digital television fundamental Service Processing Module is used to handle normal program viewing, and channel increases and decreases, changes platform and video on demand business;
The modulation administration module, be used for that cable TV network is modulated and be up to all data messages in the set-top box and transmit, and can be from the code stream of cable TV network the descending data of demodulation, obtain through the digital information of debugging and with its reduction;
The graphical display output module is used for showing the video flowing of this machine camera collection of this machine menu interface, Video Decoder, handles called machine simultaneously and passes the video flowing of coming, and is presented at them on the television screen synchronously;
The visual telephone service processing subsystem comprises managing visual telephone number Registering modules, looks audio collection processing module and call management module;
The telephone number Registering modules, be used for the leading subscriber set-top box and send telephone number application request, this machine uniquely identified sequence number information is uploaded to the visual telephone service management server that is deployed in after the network head end CMTS system based on standard Session Initiation Protocol packing, and obtains the telephone number that the visual telephone service management servers process is distributed to this machine;
Look the audio collection processing module, be used for the external coding camera collection of set-top box USB mouth code stream H.264, it is sent into the Video Decoder of set-top box, simultaneously the external microphone of USB is gathered audio frequency, through G.723 sending into the audio decoder of set-top box behind the coding, the back to video flowing H.264 and G.723 audio stream based on standard Real-time Transport Protocol packing processing;
The call management module, be responsible for that packing sends to the visual telephone service management server that is deployed in after the network head end CMTS system based on the standard Session Initiation Protocol with call information, handle ring that the visual telephone service management server returns simultaneously, the line is busy, refuse to listen, agree to answer message, and set up the communication line of calling and called side, to transmit based on the video/audio data flow of standard Real-time Transport Protocol packing, and the other side's video/audio data flow that is transferred to this machine is unpacked the realization video call based on the standard Real-time Transport Protocol;
System manager's module of being engaged in, for main control module in the set-top box with digital television fundamental business module, modulation administration module, show that each module in output module and the visual telephone service processing subsystem is connected, and is used to manage above-mentioned each module.
2. a kind of set-top-box system of realizing video telephone in cable TV network according to claim 1 is characterized in that the described audio collection processing module of looking also is included in video flowing and the audio stream packing processing procedure and adopts the 3DES cryptographic algorithm that video/audio is carried out encryption; Simultaneously the call management module is carried out the 3DES deciphering simultaneously unpacking.
3. realize the video telephone method in a cable TV network that utilizes the described set-top-box system of claim 1, it is characterized in that comprising the steps:
(1) set-top-box opening powers on the back by calling the telephone number Registering modules of visual telephone service processing subsystem, automatic visit is deployed in the visual telephone service management server behind the cable network head end CMTS, the visual telephone service management server uses the corresponding assign telephone numbers of this machine id information that carries in the set-top box registration message, return to set-top box by cable network again, set-top box herd number information and state are retained in the middle of the server simultaneously;
(2), and, do timing simultaneously and wait for to the request of making a call of visual telephone service management server if the caller calls callee needs callee's number is input in the set-top box menu interface;
(3) after the visual telephone service management server receives caller calls callee's request, can in the related registration information table that this organizational security is deposited, search the pairing callee's of call number state, if the callee is conversing or other error message is being arranged, then such message is returned by the cable network transmission and be notified to the calling party, if callee's state is idle, then give the callee by the cable network transmission notice with calling party's call request;
(4) callee receives the message that the transmission of visual telephone service management server comes, and can the prompting caller ID be calling party's number on video screen, and the loudspeaker by television set send ringing tone simultaneously;
(4.1) if callee user agrees incoming call answering, then can call this machine looks the audio collection processing module and opens coding camera that set-top box USB mouth connects and microphone and carry out video flowing collection and sound collection and coding G.723, video after gathering is shown on this dynamo-electric screen curtain, call the call management module again, video and audio data stream after gathering are packed based on the standard Real-time Transport Protocol, to send to cable TV network after the data message modulation, directly transmit to the calling party, simultaneously, will confirm that the information notice of agreeing incoming call answering sends to the visual telephone service management server;
(4.2), then refusal information notice is sent to the visual telephone service management server if callee user disagrees with incoming call answering;
(5) calling party receive callee that the visual telephone service management server returns to setting up the feedback of conversation;
(5.1) if what receive is that the callee agrees the information of calling out, then can call this machine looks the audio collection processing module and opens coding camera that set-top box USB mouth connects and microphone and carry out video flowing collection and audio collection and coding G.723, video after gathering is shown to assigned address on this dynamo-electric screen curtain, call the call management module again, video and audio data stream after gathering are packed based on the standard Real-time Transport Protocol, with sending to cable TV network after the data message modulation, directly transmit to the callee; At this moment calling party and callee all can receive the data flow after the modulation that the other side transmits, after this machine of process modulation administration module carries out demodulation, all can untie the other side and transmit next packet, original video, audio-frequency information are sent into decoder, by the graphical display output module video is shown to the screen assigned address, by the television set speaker sounding, hear the other side's sound;
(5.2) if what receive is the information that the callee disagrees with calling, then directly in screen prompt conversation failure, calling procedure finishes;
(6) in calling course of video telephone, no matter calling party calling party still is that callee callee's user hangs up the telephone, its call management module all can initiatively be closed the camera and the microphone of this machine, stop to look audio collection, hang up information from the request of sending of trend visual telephone service management server simultaneously; The visual telephone service management server can pass to the information of hanging up by the side of hanging up, the quilt set-top box of the side of hanging up also can be called camera and the microphone that this machine call management module is initiatively closed this machine after receiving this information, can send the information that affirmation is hung up from trend visual telephone service management server simultaneously, the visual telephone service management server can continue and will be passed to the side of hanging up by the information that the affirmation that the side of hanging up sends is hung up, after the side of hanging up received this information, conversation finished fully.
4. method according to claim 3 is characterized in that step (2) also comprises: if overlong time can automatic abandoned call, prompt timeout error message on calling party's video screen simultaneously.
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| CN102740161B (en) * | 2012-06-19 | 2015-04-08 | 华为技术有限公司 | Set-top box integrating functions of video telephone and media data monitoring and method thereof |
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| CN105812870A (en) * | 2016-05-04 | 2016-07-27 | 湖州优创科技有限公司 | Set-top box with video calling function |
| CN106454197B (en) * | 2016-10-10 | 2019-05-14 | 无锡纽微特科技有限公司 | Method for realizing set top box video call based on middleware |
| CN106454197A (en) * | 2016-10-10 | 2017-02-22 | 无锡纽微特科技有限公司 | Method for realizing set top box video call based on middleware |
| CN106412714B (en) * | 2016-11-10 | 2019-05-07 | 深圳创维数字技术有限公司 | A kind of method and system for realizing videophone |
| WO2018086567A1 (en) * | 2016-11-10 | 2018-05-17 | 深圳创维数字技术有限公司 | Method and system for implementing videophone |
| CN106412714A (en) * | 2016-11-10 | 2017-02-15 | 深圳创维数字技术有限公司 | Method and system for realizing videophone |
| CN108124201A (en) * | 2016-11-30 | 2018-06-05 | 华为技术有限公司 | Remind method, set-top box, multimedia equipment and the digital entertainment system of incoming call |
| CN109040476A (en) * | 2018-08-31 | 2018-12-18 | 北京云迹科技有限公司 | The method and apparatus for detecting the unregistered state of phone box |
| CN109361890A (en) * | 2018-12-12 | 2019-02-19 | 达州市志向科技外包服务有限公司 | A kind of video call system |
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